Walking-rake.



W. F. & J. G. BOHLING.

WALKING RAKE.

APPLICATION FILED NOV. 8. 1909.

Patented Nov. 22, 1910.

' UNITED sTATEs PATENT orrion.

WILLIAM F; BOHLING, OF ARCADIA, AND JULIUS C. BOHIIJING, 0F GLIDDEN, IOWA.

- WALKING-RAKE.

Original application fled March 8, 1909,

mechanism adapted to gather and convey.

substance. such, as manure, to and upo'n'an,

elevator;

A further object of this'invention is to provide improved means for cushioning walking-rake mechanism.

Our inventiol'i consists inthe construction, ar angement and 'on1bination ofelements hereinafter set forth, point-ed H out in our claims and; illustrated by the accompanying drawing, in which-Y- y 1 Figure 1 is a lan ofapo'rtion of an elevator frame and elevator therein showing our improved mechanism mounted'thereon for use in conjunction with said elevator, Fig. 2 is a si elevation of the same. Fig. 3 is a longitudinal section, on an enlarged scale. on the indicated line 3-3 of Fig. 1. Fig. ,4 is a cross-section, on anenlarged scale, on the indicated line -l4,of Fig. Fig. 5 is a cross-section, on an enlar ed scale, on the indicated line5-5 of- Fig. 3.

The mechanism hereinafter described and claimed is illustrated 'and described and has been divided out of our joint application for Letters Patent of the. United States filed March 8,1909 and serially. numbered 482,195, to which reference hereby is made.

In the construction of the mechanism as shown the numeral 30 designates an elevator frame. which may be supported inany desired manner. A drag conveyor 39 is mounted in theframe 30.and arranged for travel of its upper portion rearwardly and upwardly as indicated by the arrow 1) in Fig. 2. The drag conveyor 39 is supported and guided in its lower portion by a shaft 42 journaled in and transversely of the frame 30. A scraperblade 50 is mounted transversely of and projects beyond the lower forward end of the elevator frame 30. The-scraper blade is inclined and has its rear upper margin overlapping the conveyer 39. Brackets 51, 52 are fixed to and project upwardly from central portions of the elevator frame 30 s ecification of Letters Patent.

Serial No. 482,195.

1909. SerialNo. 527,321.

loosely on said cranks.

. arm (55.

Divided and this application filed November 8,

oppositeeach other and a rod 53 connects the upper ends of said brackets and extends across said frame Bearings 5st, in this1in-- stance four in number, are mounted lo'osely on the shaft 53 and project rearwardly therefrom. Rods 55, 1n this instance four'in' number, are mounted loosely through rearwardly projecting portions of the bearings 54; and extcnd'across the shaft'53, 'The up per end portions of the rods 55 are threadedto receive nuts 56 and expansive coil springs 56 are mounted on said rods between, and at their opposite endsimpinge said nuts and thc bearlngs Arms '58, in this instance four in 'mnnber, are? pivoted at their. rear ends to the lower ends of" the rods 55 .and extend downward and forward therefrom above the convey'r 39 and scraper blade 50. The arins'58 are spaced throughout the width; of the conveyer 39.

Brackets 59, 60 are fixed toand rise from the forward end portions of the sides of the elevator frame 30 and a shaft 61 is journaled to said brackets and is driven, preferably by sprocket gearing 62, from av prime mover not shown. The shaft 61 is formed with a plurality of cranks, in this instance four in number, set quartering relative to each other, between its bearings and collar bearings (it, also four in number, are mounted The arms 530xtend through the collar bearings (Sibeneath and at right angles to the shaft 61. Ex'ten ,sion arms 65, also four in number, are

mounted at their rear ends in and pivoted-to the collar bearings 64 and extend forward and parallel with and above the arms 58' to points beyond the forward ends of the latter arms. Yokes 66. also four in number, ex lend beneath and einbrace pairs of the arms :18, ti? adjacent to the forward ends" of the first. arms. End port-ions of the yoke 66 are Patented. Nov. 22, 1910.

threaded to receive nuts 67, 68. A bar I washer (S9 is mounted 011 the arms ofeach yoke 66 and engages the. upper surface of an Expansive coil springs 70, 71 are mounted on the arms of the yokes 66 between and impinging the bar washer 69 and,

the nuts 67, 68 res ectively. The springheld yokes (i6 provi 'e a resilient connection between the forward ends of the arms 58, 65

and said arms 65 may oscillate andarticw late in'the collar bearings 64. The arms 58, 65 preferably are composed of tubing, and gathering devices such as hoes 72, or rakes,

f the substance upwardly are mounted with their stems in and fixed to the forward ends of said bars, the gathering devices, constructed eitheras hoes or rakes, orpartly of one and artly of the other, depending at right ang'es toand in front of the bars on wh1ch they are mounted. The crank shaft 61 is rotated in any desired manner and it is the function of said shaft 61 to oscillate the arms 58 and 65 and cause the gathering devices thereon to engage 'and drag substances upon and across the scraper blade and u on the. drag conveyer 39.

The nuts EG/an springs 57 provide means for adjusting the tension of the arms 58 and the nuts 67, 68 and springs 70,.71- provide means for adjusting the arms65. p

In practical use the machine is advanced slowly to the substance to be removed, such as manure, the scraper bladeoO penetrates beneath the ,surface to be removed; the gathering devices 72, actuated by the arms arms pivotedat their rear ends side by sideto said rod and above said conveyer, said arms extending lengthwise of said conveyer, a multiple crank shaft mounted transversely of said conveyer, bearings loosely mounted on the cranks of said shaft, said arms extending through said-bearings;beneath said cranks, whereby the crank shaft is adapted to oscillate said arms, and gathering devices on the forward ends of said arms.

2. ha loading machine, a transverse rod, bearings mounted loosely on said rod and projecting rearwardly therefrom. rods extension of the tending upwardly through said Hearings at the rear of the transverse rod, yielding prese sure devices acting on the latter rods and the bearings-arms pivoted at the1r rear ends to the lower ends of said rods, cranks actlng on intermediate portions of said arms, and

gathering devices fixed to the forward ends of said arms.

3. In a loading machine, avrod, bearings thereon, hangers in said bearings at the rear of said rod, yielding pressure devices on said hangers above said bearings,. arms pivoted to said hangers below said bearings,

gathering devices on the opposite ends of said arms, and a crank shaft acting on intermediate portions of and adapted to oscillate said arms.

4. In a loading machine, a hanger mounted for oscillation, a crank shaft, a bearing on said crankshaft, an arm pivoted at one end to said hanger andextending through said bearing, an, arm parallel with the first arm and pivoted 'to said bearing, and gathering devices on the forward ends of said arms.

In a loadinginachine, a hanger mountedfor oscillation, a crank shaft, a'bea-ring on said crank shaft, an arm pivoted at one end to said hanger and extending through said bearing, an arm parallel to the first arm and pivoted to said bearing, and gathering devices on the forward ends of said arms, together with resilient yokes con necting said arms. 6. In a loading machine, a hanger mounted for oscillation, a crank shaft, a bearing on said crank shaft, an arm pivoted at one end to said hanger and extending through said bearing, an arm parallel to the first arm and pivoted to said; bearing, and gathering devices on the forward ends of the arms, to-

; gether with resilient yokes connecting said arms, and tension devices on said hangers.

' WILLIAM F. BOHLING.

JULIUS C. BOHLING.

lVitnesses 'J. C. PRUTER,

D. Hanna, Jr. 

